Inventor
KUMAGAI TATSUYA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAI TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CABLE
7 patentsUS5701177ADec 23, 1997
Method for detecting fault of optical fiber gyro and apparatus for diagnosing fault of the same
HITACHI CABLE27 citations91
US5471301ANov 28, 1995
Optical fiber gyro
HITACHI CABLE25 citations89
US7992440B2Aug 9, 2011
Optical fiber vibration sensor
HITACHI CABLE15 citations82
US4818047AApr 4, 1989
Polarized wave preserving fiber
HITACHI CABLE13 citations71
US5396327AMar 7, 1995
Fiber-optic gyroscope having angular velocity correction
HITACHI CABLE2 citations62
US5608525AMar 4, 1997
Phase adjustable optical fiber gyro using both even order harmonics and an orthogonal component of an even-order harmonic
HITACHI CABLE6 citations61
US5555235ASep 10, 1996
Optical fiber gyro with memory storing data measured under application of angular velocity
HITACHI CABLE4 citations61
NIPPON STEEL & SUMITOMO METAL CORP
3 patentsUS9770789B2Sep 26, 2017
Flux-cored wire for gas-shielded arc welding, method for welding steel for very low temperature use, and method for manufacturing weld joint
NIPPON STEEL & SUMITOMO METAL CORP8 citations82
US10946486B2Mar 16, 2021
Flux-cored wire, manufacturing method of welded joint, and welded joint
NIPPON STEEL & SUMITOMO METAL CORP2 citations73
US11331742B2May 17, 2022
Flux-cored wire, manufacturing method of welded joint, and welded joint
NIPPON STEEL & SUMITOMO METAL CORP0 citations50
KUMAGAI TATSUYA
3 patentsUS8500924B2Aug 6, 2013
High-strength steel plate and producing method therefor
KUMAGAI TATSUYA1 citations48
US8216400B2Jul 10, 2012
High-strength steel plate and producing method therefor
KUMAGAI TATSUYA0 citations38
US8730481B2May 20, 2014
Sagnac optical ingredient-measuring apparatus with circular polarizers in parallel
KUMAGAI TATSUYA0 citations36